Vomiting and nausea occur in many pregnant women, in the first trimester of pregnancy, but the etiology of these symptoms is obscure. A specially constructed questionnaire was administered to 102 pregnant women, in the first 12 weeks of pregnancy, in an effort to see with which factors these disturbing symptoms correlated. Our findings showed that vomiting and nausea correlated with: (1) unsuitable diet with big and rare meals; (2) poor communication with the husband; (3) poor communication with the obstetrician and; (4) stress, doubts and inadequate information about pregnancy, childbirth and health of fetus.